Attachment Parenting: What is your opinion?

I was gifted a book about it and I'd like to know more about it before I commit to reading 500 pages. What even is attachment parenting?
ETA* Okay, I probably should have just asked for your opinions. Didn't think that one out to well.

I accidentally did attachment parenting although I have read any studies on it or researched at all....im a stay at home mom ans my husband is in the army ..we live far away from all family and im not a social person. ..my husband deployed for a yr and is gone alot in general. ..my son and I have developed a super close bond because im really all he knows..... I dont get baby sitters I dont go out I dont have me time. My son sleeps with. For a long time I loved it I thought it was great that we were so close and he loved me so much. ... flash forward to now...I have some regrets my son has severe seperation anxiety I cant leave the room with out him freaking out hes super jealous I cant even pet a stray cat without him getting jealous. Hes supposed to start school here in a couple days and I dont know how it's gonna go. Im also highly concerned about bringing the new baby home because I wont be able to give him the 100% attention hes so used to getting ..he also has a severe speech delay and partly my fault because I was meeting all his needs and wants before he even tried to ask or let me know....
pros: you will be able to tell exactly what ur child wants their different cries and moods u get really in tune with your child and the bond is really strong
cons:you cant and dont want it to last forever its really hard to try and break a bond you spent so much time building

I practice loosely based AP with my 8 year old and will with this baby also. Your best bet is to google the term and read a few webpages to get a general idea. It isn't good OR bad, it is what works for your family or doesn't.

I picked what worked for me with AP. I wasn't able to extended breast feed, nor would I past a year had I gotten past 6 mos. (Not a judgment on others, a personal decision) We did (and still do) bedshare, but with the new baby I'm going to try and have her sleep on her own more. I did use a pacifier, but my son has never CIO'd. I'm sure the book will have lots of information, and yeah, it'll be biased. But remember, you don't have to use all of the info/techniques, you can build your personal style using all sorts of stuff.

AP works very well for our family (we currently have 2 kids, with #3 due in February). Like PP said you can take some techniques and not use others but at its core it is about sharing a strong emotional bond and really understanding your child and using this understanding to help you make day-to-day parenting decisions.